EP 2631022 B1 20140611 - Die for self-piercing rivet fastening device
Title (en)
Die for self-piercing rivet fastening device
Title (de)
Matrize für eine Vorrichtung zum Setzen von Stanznieten
Title (fr)
Matrice pour dispositif de fixation de rivets autoperforants
Publication
Application
Priority
JP 2012034785 A 20120221
Abstract (en)
[origin: EP2631022A1] The invention relates to a die (50) for a self-piercing rivet fastening device (1) comprising a punch (4) for driving a self-piercing rivet (10) having a large-diameter head portion (11) and hollow leg portions (12) extending from the head portion into a plurality of fastened members (41, 42) placed on the die. There is a cavity (51) in the upper surface of the die (50) for receiving portions of the fastened members (41, 42) which protrude after the self-piercing rivet (10) has been driven into the members by the punch. The cavity (51) is axially symmetrical relative to the central axis of the cavity, and has a round concave surface (52) in the central portion, a convex surface (54) surrounding the round concave surface (52), and a concave surface (53) in the outer peripheral portion surrounding the convex surface. The die (50) is able to fasten members made of a material with low malleability.
IPC 8 full level
B21J 15/02 (2006.01); B21J 15/28 (2006.01); B21J 15/36 (2006.01)
CPC (source: EP)
B21J 15/025 (2013.01); B21J 15/36 (2013.01); F16B 19/086 (2013.01); F16B 5/04 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2631022 A1 20130828; EP 2631022 B1 20140611; JP 2013169567 A 20130902
DOCDB simple family (application)
EP 13155368 A 20130215; JP 2012034785 A 20120221